Response of Rainfed Castor to Soil and Foliar Application of Zinc and Iron Micronutrients

A field investigation was carried out to study the influence of zinc and iron micronutrients on performance rainfed castor, in Professor Jayashankar Telangana State Agricultural University, state, India for three consecutive years during kharif 2011-12, 2012-13 2013-14. There were nine treatments viz., Control (no micronutrient application); soil application FeSO4 @ 15 kg ha-1; 25 ZnSO4 foliar 0.5% at 50 DAS; 90 DAS tested randomized block design with replications. The (0.5%) twice resulted significantly higher seed yield (1698 ha-1), gross returns (Rs. 54344 net 33501 ha-1) B:C ratio (2.60) over rest treatments. improvement tune 54% no application. uptake major greater when crop received two sprays as compared one spray ZnSO4, either micronutrients. castor bean responded Zn better than Fe by producing 10.2% 12.2% yield. Foliar found superior case both